What is an EdCamp? According to edutopia, Edcamps are: Free to all participants; A free-flow of ideas and information about education, education technology and best practices for teachers; An unconference model of sessions throughout the day for spontaneous topics, chats and activities; The ability of being a presenter is at your discretion (and courage)
Tanning bed bulbs and lamps should be replaced when they have been used to 80 percent of their expected life cycle, and typically hit this mark about one year after they have been installed. Low-pressure lamps have a life cycle of 300 to 1,700 hours, while high-pressure bulbs last 300 to 9,500 hours.
For example, a closet light may only get switched on for a couple of minutes every day. Even with today's high electricity rates you can power a light for two minutes a day at a cost of about 15 cents per year. It might take 50 years to recoup the cost of replacing such a bulb with an LED. On the other hand, a business that is open 9 hours per day and 260 days a year might have several 60 watt bulbs burning during this entire time. The cost to power a single 60 watt bulb for this business would be about $30/year vs. $4.40/year for an 8.5 watt LED.